Contents
- Weather in May
- Frequently asked questions
- Average temperature in May
- Average pressure in May
- Average wind speed in May
- Average humidity in May
- Average rainfall in May
- Average rainfall days in May
- Average daylight in May
- Average sunshine in May
- Average sunshine days in May
- Average UV index in May
- Average cloud cover in May
- Average visibility in May
May
Weather in May
Temperature
The arrival of May brings an average high-temperature of a still moderately hot 27.3°C (81.1°F), nearly identical to April's 27.6°C (81.7°F). In the month of May, the average low-temperature in Watawala, Sri Lanka, usually rests at a refreshing 19.1°C (66.4°F).Heat index
May's heat index is estimated at a tropical 31°C (87.8°F). Remaining active during long-lasting exposure could cause fatigue, leading to heat cramps.One should be cognizant that the heat index values are tailored for shaded spots and mild winds. If directly exposed to the sun, the heat index could rise by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', comes about by integrating the temperature readings with the humidity levels. Physical activity, clothing, and metabolic variations are additional factors that impact an individual's perception of temperature. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Younglings are generally more in peril than adults due to their reduced perspiration. Coupled with a larger skin surface relative to their tiny bodies and greater heat production because of their activity, they become more at risk.
Humidity
The average relative humidity in May in Watawala is 86%.Rainfall
In Watawala, in May, during 29.8 rainfall days, 290mm (11.42") of precipitation is typically accumulated. Throughout the year, in Watawala, Sri Lanka, there are 297.7 rainfall days, and 2800mm (110.24") of precipitation is accumulated.Daylight
In Watawala, Sri Lanka, the average length of the day in May is 12h and 26min.On the first day of May, sunrise is at 05:53 and sunset at 18:16. On the last day of the month, sunrise is at 05:50 and sunset at 18:20 +0530.
Sunshine
The average sunshine in May in Watawala, Sri Lanka, is 9.1h.UV index
February through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high threat to health from unprotected exposure to Sun's UV rays for the average person.Note: In May, the maximum UV index of 6 transforms into these recommendations:
Undertake precautions and comply with sun safety standards. Protection from skin and eye injury is vital. Avoid direct Sun exposure and seek shade between 10 a.m. and 4 p.m., when UV radiation is at its peak, but keep in mind that not all shade structures provide complete protection. Experience reduced UV exposure by about half when donning a wide-brim hat.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Watawala in May?
What is the average humidity in May in Watawala?
How many days does it rain in May in Watawala?
How many hours of daylight does Watawala have in May?
When are sunrise and sunset in May in Watawala?
How long on average sun shines in May in Watawala?
When is the highest UV index in Watawala?
What is the UV index intensity in May in Watawala?
Average temperature in May
Watawala, Sri Lanka
- Average high temperature in May: 27.3°C
The warmest month (with the highest average high temperature) is April (27.6°C).
The month with the lowest average high temperature is December (24.3°C).
- Average low temperature in May: 19.1°C
The month with the highest average low temperature is May (19.1°C).
The coldest month (with the lowest average low temperature) is February (15.3°C).
Average pressure in May
Watawala, Sri Lanka
- Average pressure in May: 1008.4mbar
The month with the highest atmospheric pressure is January (1011.7mbar).
The month with the lowest atmospheric pressure is June (1008.3mbar).
Average wind speed in May
Watawala, Sri Lanka
- Average wind speed in May: 6.3km/h
The windiest month (with the highest average wind speed) is June (9.1km/h).
The calmest month (with the lowest average wind speed) is April (3.3km/h).
Average humidity in May
Watawala, Sri Lanka
- Average humidity in May: 86%
The month with the highest relative humidity is November (89%).
The month with the lowest relative humidity is March (80%).
Average rainfall in May
Watawala, Sri Lanka
- Average rainfall in May: 290mm
The wettest month (with the highest rainfall) is October (656mm).
The driest month (with the least rainfall) is January (85mm).
Average rainfall days in May
Watawala, Sri Lanka
- Average rainfall days in May: 29.8 days
The month with the highest number of rainy days is May (29.8 days).
The month with the least rainy days is February (16.3 days).
Average daylight in May /
Average sunshine in May
Watawala, Sri Lanka
- Average daylight in May: 12h and 2min
The month with the longest days is June (Average daylight: 12h and 30min).
The month with the shortest days is December (Average daylight: 11h and 42min).
- Average sunshine in May: 9h and 1min
The month with the most sunshine is June (Average sunshine: 10h and 0min).
The month with the least sunshine is December (Average sunshine: 4h and 36min).
Average sunshine days in May
Watawala, Sri Lanka
- Average sunshine days in May: 0.8 days
The month with the most sunshine days is February (11 days).
The month with the least sunshine days is May (0.8 days).
Average UV index in May
Watawala, Sri Lanka
- Average UV index in May: 6
The months with the highest UV index are February, March, April, May, June, July and August (UV index 6).
The months with the lowest UV index are January, September, October, November and December (UV index 5).
Average cloud cover in May
Watawala, Sri Lanka
- Average cloud cover in May: 52
The month with the most cloud cover is November (Cloud cover 63).
The months with the least cloud cover are July and August (Cloud cover 42).
Average visibility in May
Watawala, Sri Lanka
- Average visibility in May: 7km
The months with the highest visibility are June, July and August (9km).
The months with the lowest visibility are November and December (6km).
